Pulley



(No Model.)

Wain/asses;

W. W. MdOHESNEY.

PUL-LEY. V

Patented Jan. 20, 1885.

I .Inv'e Hi0 QWZ UNITED STATES PATENT OFFICE.

WESLEY W. MCOHESNEY, OF GREEN ISLAND, NEW YORK.

PULLEY.

SPECIPICA'IIO N forming part of Letters Patent No. 311,023, datedJanuary 20, 1885.

Application filed December 8, 1884. (No mrdel.)

To all whom it may concern.-

and, after inserting one end through the aper- Be it known that I,WESLEY W. MoOnEsture D, to connect the severed ends again be- NEY, aresident of Green. Island, in the county of Albany and State of NewYork, have invented certain new and useful Improvements in Pulleys; andIdo hereby deelarethat the following is a full, clear, and exactdescription of the invention, that will enable others skilled in the artto which it appertains to make and use the same, reference being bad tothe accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

Similar letters refer to similar parts in the several figures therein.

My invention relates to improvements in pulleys, and to that classdenominated side pulleys.

The object of my invention is to provide a pulley which will permit ofthe convenient insertion and removal of an endless rope or cable withoutinjury to the pulley.

My invention consistsin constructing the box in sections adapted to berotated on the pulley-axle from a parallel to a right-angular positionrelatively to each other, and vice Figure 1 of the drawings is a planview of the face of a side pulley. Fig; 2 is a sideor edge view of samewith the sections parallel to each other, or in position for use. Fig. 3is a plan view of back side of same. Fig. 4

central enlarged portions of the sections are connected by a screw, 9,or rivet d, which supports the grooved pulley 0 between said sections.

Heretofore in the use of such pulleys it has been necessary to sever thecord or cable which travels in the groove of said pulley,

fore the same was ready for use, and to sever the same again before itcould be withdrawn from the pulley, as the two sections have either beenof cast metal in a single piece or have been inseparably connectedtogether when made in sections; but the employment of my improved devicepermits the back plate or section, B, to be turned from the positionshown in Fig. 2 to that shown in Fig. 4, in which it occupies a positionright angular to the section A. The middle portions of the sections Aand B are a trifle wider than the diameter of the pulley, to protect itfrom contact with external objects, but not so wide as to interfere withthe free and easy ingress and egress of the chain or cord to or from thepulley-groove through apertures D. After the cord has been inserted orwithdrawn, as the case may be, the sections are restored to the positionshown in Fig. 2, ready for use, it only being necessaryto remove andinsert the screws through the end apertures of the sections and turn onesection upon the other. The rivet d may pass through both sections andbe headed down upon the outer surfaces, as shown in Fig. 4; or it may becast integral with one of the sections, as B, (shown in Fig. 2,)rendered malleable, and the projecting end headed down upon the outersurface of section A.

Instead of a rivet a screw, Fig. 1', may be employed, and if this screwprojects into the pulley-supports the pulley need not be entirelyremoved therefrom when the cord is withdrawn or inserted. I am thus ableto cheaply produce a strong and durable side pulley that can be easilyand quickly opened to receive a cord or chain, and as easily closedagain to securely retain the same when in use.

What I claim as new, and desire to secure by Letters Patent, is-

1. A side pulley consisting of a pulley supporting and inclosing boxmade in sections, connected by the pulley-supporting axle, and adaptedto turn thereon and form an ingress and egress opening through saidinclosure to screw-holes a a, substantially as and for the and from saidpulley, substantially as and for purposes set forth.

the purposes set forth. 7 p 2. In a side pulley, and in combination, a aplane back plate, B, an inolosing front plate, A, connecting screw orrivet d, pulley O, and means for securing said plates firmly together,and at the same time to their support, as

In testimony whereof I have hereunto set my hand this 24th day ofNovember, 1884.

\VESLEY XV. MOOHESNEY.

lVitnesses:

GEO. A. Mosr-rnn,

W. H. HoLLIsTnR, Jr.

